If events A and B are independent, which of the following is true regarding their complements A' and B'? MCQ with Answer and Explanation

Question
If events A and B are independent, which of the following is true regarding their complements A' and B'?
A. They are also independent
B. They are mutually exclusive
C. They are dependent
D. They are completely associated
Answer: Option A
Solution (By JKSSB Mock Tests)
A fundamental theorem of probability states that if A and B are independent, their complements A' and B' are also independent.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
Which of the following is an example of chronological classification?
A. Data arranged by state
B. Data arranged by gender
C. Data arranged by year
D. Data arranged by income group
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Correct Answer: Option C

Explanation:
Arranging data according to time of occurrence is chronological classification.
This question belongs to: Accountancy and Statistics Statistics
Question #2
The index number that uses the geometric mean of price relatives with base year value weights is:
A. Walsh index
B. Marshall-Edgeworth index
C. Fisher index
D. Theil-Tornqvist index
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Correct Answer: Option D

Explanation:
Theil-Tornqvist index uses base and current value shares as weights for geometric mean of price relatives.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Which type of classification is used when data is grouped according to time periods such as years, months, or quarters?
A. Chronological classification
B. Spatial classification
C. Qualitative classification
D. Quantitative classification
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Correct Answer: Option A

Explanation:
Chronological classification organizes data based on time sequences, enabling analysis of trends, patterns, and changes over specific periods like years or months.
This question belongs to: Accountancy and Statistics Statistics
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